# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
# 
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
# 
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
#
# Author: Michael DiBernardo (mikedebo@gmail.com)
# Copyright Michael DiBernardo 2009
"""
View functions for creating tickers.
"""
from tikk.core.models import *
import tikk.core.view_responses as view_responses

def create_ticker(request, ticker_type, ticker_name):
    """
    Create a ticker of the given type.
    """
    # Check if the user is requesting a ticker type that is valid.
    if ticker_type not in [pair[0] for pair in TICKERS]:
        return view_responses.not_allowed()

    # Check if the ticker exists.
    try:
        ticker = Ticker.objects.get(name__exact=ticker_name)
        # Success here means it exists already -> that's a problem.
        return view_responses.not_allowed()
    except:
        pass

    # Enforce that the ticker has to be one of the good types.
    new_ticker = Ticker(name=ticker_name, type=ticker_type)
    new_ticker.save()
    return view_responses.everything_is_cool()
